Quentin is a new WordPress 1.2 theme. It is not currently available for v. 1.5 but will be soon.
Here’s a new WordPress Theme called Placid.
Two new WordPress 1.5 themes from The Life of Me.
Poetic Rose is a fully functional WordPress 1.5 theme. Also included are blank images allowing for your own customization.
Here are three WordPress 1.2 templates.
Here’s a simple 3-column WordPress 1.5 theme called Trident.
I found some WordPress Templates on a German language website. I believe these are for version 1.2.
The ShadedGrey theme for WordPress 1.5 from wpthemes.info.
Here’s the Midevil WordPress 1.2 theme and the Obsidian WordPress 1.5 theme.
Here’s the latest theme XT2 from Arzel.